ToSql and FromSql implementations for [u8; N] via the array-impls feature.smol_str 0.1 via the with-smol_str-01 feature.ToSql::encode_format to support text encodings of parameters.uuid 1.0 via the with-uuid-1 feature.tokio-util 0.7.parking_lot 0.12.Client::transaction future was dropped before completion.SimpleQueryRow::columns.eui48 1.0 via the with-eui48-1 feature.FromSql and ToSql implementations for arrays via the array-impls feature.time 0.3 via the with-time-0_3 feature.SqlState constants can now be used in match patterns.geo-types 0.7 via with-geo-types-0_7 feature.Client::clear_type_cache.Error::as_db_error and Error::is_closed.tokio 1.0.postgres-types 0.2.ToSql values can now take both &dyn ToSql and T: ToSql values.tokio 0.3.DbError's Display implementation.geo-types 0.6.Transaction::savepoint, which can be used to create a savepoint with a custom name.Debug implementations for Client, Row, and Column.time 0.2 support.Connection::poll_message.Client::cancel_query and Client::cancel_query_raw in favor of Client::cancel_token.Client::build_transaction to allow configuration of various transaction options.Client::cancel_token, which returns a separate owned object that can be used to cancel queries.Config fields.GenericClient trait implemented for Client and Transaction and covering shared functionality.println!s from copy_out internals.Client::copy_in now returns a Sink rather than taking in a Stream.CopyStream has been renamed to CopyOutStream.Client::copy_in and Client::copy_out no longer take query parameters as PostgreSQL doesn't support parameters in COPY queries.TargetSessionAttrs, SslMode, and ChannelBinding are now true non-exhaustive enums.Client::query_opt for queries expected to return zero or one rows.binary_copy module.uuid 0.7 support.bytes to 0.5.tokio to 0.2.timezone property from GMT to UTC.Stream implementations are now !Unpin.uuid 0.8.Row::try_get errors.std::futures::Future and async/await syntax.&self rather than &mut self.&[&(dyn ToSql + Sync)] rather than &[&dyn ToSql] to allow futures to be Send.&Statement can now also take &str, and will internally prepare the statement.ToSql now serializes its value into a BytesMut rather than Vec<u8>.Streams now return Vec<T>. New *_raw methods still provide a Stream interface.channel_binding=disable/allow/require configuration to control use of channel binding.Client::query_one method to cover the common case of a query that returns exactly one row.query and copy_in.copy_in must be 'static.hyper's, with separate Connection and Client objects. See the crate-level documentation for more details.prefer) is now part of the connection configuration rather than being passed in separately.ToSql and FromSql implementations for external crates are now versioned. For example, with-uuid is now with-uuid-0_7. This enables us to add support for new major versions of the crates in parallel without breaking backwards compatibility.tokio-core to tokio.FromSql implementations can now borrow from the data buffer. In particular, this means that you can deserialize values as &str. The FromSqlOwned trait can be used as a bound to restrict code to deserializing owned values.tokio by default, the base API can be used with any asynchronous stream type on any reactor.with-openssl feature has been removed. Use the tokio-postgres-openssl crate instead.with-rustc_serialize and with-time features have been removed. Use serde and SystemTime or chrono instead.Look at the release tags for information about older releases.